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Document ID (ISN)18369
CIS number 73-1628
ISSN - Serial title 0009-2789 - Chemickř průmysl
Year 1972
Convention or series no.
Author(s) Hovorka J.
Title Determination of ethylene glycol in air by polarography
Original title StanovenÝ ÚtylÚnglykolu v ovzdušÝ polarografickou metodou [in Czech]
Bibliographic information Dec. 1972, Vol.22, No.12, p.628-630. Illus. 13 ref.
Abstract Description of a method developed to determine ethylene glycol in the air of a factory producing Nitrosan 50. The method is based on splitting vicinal glycols by means of periodic acid. The reaction gives rise to formaldehyde and iodic acid which is freed from any periodic-acid excess by means of lithium hydroxide and determined by polarography. The presence of dinitro-o-cresol affects the determination by a deviation of about 3%, which is within the limits of reproducibility. The TLV which has been proposed for ethylene glycol in Czechoslovakia is 40Ág/L; the method described in this article enables concentrations down to 1Ág/L to be detected in air samples of 5L.
Descriptors (primary) chemical industry; ethylene glycol; polarography; determination in air; environmental pollution
Descriptors (secondary) threshold limit values; determination of concentration; chemical analysis; Czechoslovakia
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Environmental pollution
Chemical industry